Vulnerability in Kernel: net: xilinx_emaclite: Do not print real IOMEM pointer
Summary
GSD-2021-1001228: net: xilinx_emaclite: Do not print real IOMEM pointer. Affects Kernel versions < 8722275b41d5127048e1422a8a1b6370b4878533. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. It plays a crucial role in the overall functionality and stability of the system. The xilinx_emaclite module is a network driver specifically designed for Xilinx FPGA-based Ethernet MAC Lite IP cores. It enables communication between the FPGA and the network interface. However, a vulnerability has been discovered in this module that involves printing the real IOMEM pointer, which can potentially expose sensitive information and pose a security risk.
Vulnerability Detail
The vulnerability in the xilinx_emaclite module allows the real IOMEM pointer to be printed, which can be exploited by an attacker to gain unauthorized access to sensitive information. By obtaining the IOMEM pointer, an attacker may be able to manipulate memory addresses and execute arbitrary code, leading to a variety of potential attacks, including privilege escalation, information disclosure, and system compromise. This vulnerability has been addressed in the Linux Kernel version v5.13.3 by commit 8722275b41d5127048e1422a8a1b6370b4878533.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.13.3 or later. This can be done by following the official update process provided by the Linux distribution being used. Alternatively, users can manually apply the commit 8722275b41d5127048e1422a8a1b6370b4878533 to their Kernel source code and recompile it.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the vulnerability in the xilinx_emaclite module of the Kernel can lead to unauthorized access, privilege escalation, and information disclosure. It is crucial to update the Linux Kernel to version v5.13.3 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to obtain the real IOMEM pointer, potentially leading to unauthorized access, privilege escalation, information disclosure, and system compromise.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
Yes, the vulnerability has been fixed in the Linux Kernel version v5.13.3 by commit 8722275b41d5127048e1422a8a1b6370b4878533. It is recommended to update to this version or later to mitigate the vulnerability.
At the time of this report, there are no known exploits for this vulnerability. However, it is important to apply the necessary updates or patches to prevent any potential exploitation.
You can find more information about this vulnerability in the GSD-2021-1001228 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001228.json
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